KR101379429B1 - Ship having movable guide bridge - Google Patents

Abstract

Provided is a ship having a movable guide bride. The ship includes a first structure extending to an upper portion of a main deck, and on which a derrick is installed; a second structure adjacent to the first structure to supply a drilling pipe to the derrick; a rail part installed on at least one of the first and second structures; a support plate moving along the rail part and connecting the first and second structures; a drilling pipe transfer part transferring the drilling pipe to the derrick from the second structure through the upper surface of the support plate; and a gantry crane provided between the first and second structures and moving in a direction crossing the moving direction of the drilling pipe.

Description

Ship having movable guide bridge

The present invention relates to a vessel provided with a guide bridge is installed in the vessel to guide the transfer of the drilling pipe, and more particularly relates to a vessel formed with a movable guide bridge that can avoid collision with a crane in the vessel.

Boring holes / wells are formed at the bottom of the deep sea or the offshore, and the buried fossil fuels such as crude oil and natural gas are collected therefrom for drilling at sea. Offshore drilling operations include not only basic drilling equipment such as drill bits, but also a riser for supplying a drilling fluid to a drill bit located at the bottom of the sea, or a stepwise insertion into a borehole. Additional equipment is used, such as drilling tubes, such as casings, or separate blow out preventers (BOPs) to protect the borehole from seawater and to regulate the borehole's internal pressure.

Offshore drilling vessels, that is, drill ships, are loaded with various such drilling equipment. Each of the loaded drilling equipment is transported to the seabed and then to the bottom of the hull, such as Derrick or Moon pool, from each loading place distributed onboard, and the drilling equipment is easily transported. To be able to do so, a variety of transfer equipment such as cranes and conveyors are mounted on decks of decks. Korean Unexamined Patent Publication No. 10-2012-0005770 discloses an example of a transfer equipment mounted on a drilling vessel for transferring a riser.

As the various transfer equipments are mounted in this way, the transfer paths of the transfer equipments may cross each other on the narrow deck. Particularly, drilling tubes such as risers and casings are not only long, but also are difficult to be gripped by conventional cranes alone, and are transferred to a separate conveyor extending in the horizontal direction. Other transport equipment and its transport path may be frequently crossed. Therefore, in order to smoothly transport drilling equipment, a method of selectively operating a conveyor and a gantry crane is used.

However, on the conveying path of the conventional conveyor, a plate-like structure that guides the movement of the conveyor by connecting between the loading point and the conveying point, for example, a guide bridge is installed, which blocks the movement of other conveying equipment such as a gantry crane. Or the transfer area is more than necessary. In order to solve this problem, the guide bridge installed every time the conventional gantry crane was operated, on the contrary, the unnecessary work of reinstalling the dismantled guide bridge was carried out during the transfer of the drilling pipe.

Republic of Korea Patent Publication No. 10-2012-0005770, (2012.01.17)

The technical problem to be achieved by the present situation is to provide a vessel formed with a movable guide bridge that can easily avoid the collision with the crane in the vessel without dismantling work.

The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

The ship with a movable guide bridge according to the present invention includes: a first structure extending above the main deck and having a drilling tower; A second structure adjacent to the first structure and supplying a drilling tube to the drilling tower; A rail unit installed on at least one of the first structure and the second structure; A support plate moving along the rail unit and connecting between the first structure and the second structure; A drilling pipe conveying unit for transferring the drilling pipe from the second structure to the drilling tower through an upper surface of the support plate; And a gantry crane installed between the first structure and the second structure and moving in a direction crossing the movement direction of the drilling tube.

The rail unit may be disposed parallel to the moving direction of the gantry crane.

The rail part may include a pair of first rail parts respectively formed on the first structure and the second structure, and the first rail part may be formed in parallel with the first rail part on the first structure and the second structure, respectively. A pair of second rail portion located inside the portion, wherein the gantry crane is moved along the first rail portion, the support plate may be moved along the second rail portion.

The support plate may be inserted into a movement of any one of the first structure and the second structure.

The rail portion is formed in a direction intersecting the first rail portion in one of a pair of first rail portions respectively formed in the first structure and the second structure, and one of the first structure and the second structure. Including a pair of second rail portion, the gantry crane may move along the first rail portion, the support plate may move along the second rail portion.

In the ship with a movable guide bridge according to the present invention, the guide bridge is located on the transport path of the drilling pipe during the transport of the drilling pipe to easily guide the transport of the drilling pipe of the conveyor, and the guide after the drilling pipe transport is completed. The bridge moves along the rail and leaves the transport path. Therefore, drilling pipe transfer equipment such as a conveyor and other transfer equipment such as a gantry crane intersecting the transfer path can be selectively and smoothly operated without collision.

1 is a perspective view of a vessel formed with a movable guide bridge according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line a-a 'of the ship of FIG. 1 showing a state in which the guide bridge is moved.
3 is a side view of the guide bridge and gantry crane of the vessel of FIG.
4 is a side view of the guide bridge and the gantry crane of the vessel of FIG. 1 according to a modification of the rail portion.
5 and 6 is an operation of the guide bridge and gantry crane of FIG.
7 to 9 is an operation of the guide bridge and gantry crane of FIG.
10 is a perspective view illustrating a portion of a vessel on which a movable guide bridge according to another embodiment of the present invention is formed.
11 is an operation of the guide bridge and gantry crane of the vessel of FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is only defined by the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, with reference to Figures 1 to 9 will be described in detail a vessel formed with a movable guide bridge according to an embodiment of the present invention.

 1 is a perspective view of a vessel formed with a movable guide bridge according to an embodiment of the present invention.

First, referring to FIG. 1, the vessel 1 in which the movable guide bridge is formed is formed on various types of structures including the first structure 10 and the second structure 20 on the main deck 2 of the hull. One or more transfer equipment such as a crane is mounted between these structures. A drilling tower 11 is installed on the first structure 10, and a riser is disposed in the second structure 20. Alternatively, the drilling vessel may be provided with a plurality of drilling pipes A such as casing. Transport equipment mounted on the main deck 2 is used to transport a variety of drilling equipment including such a drilling pipe (A).

As shown in the drawing, a plurality of structures occupy a space on the narrow main deck 2, thereby causing a problem of congestion of the transport paths of the transport equipment mounted on the ship. In particular, the drilling pipes (A) loaded on the second structure 20 are loaded on the drilling pipe conveying unit 40 of a narrow and long form of the narrow and long form called a catwalk (catwalk) is supplied to the drilling tower 11, drilling The transfer path of the drilling tube transfer part 40 moving across the space between the second structure 20 and the first structure 10 toward the tower 11 is the first structure 10 and the second structure 20. The gantry crane 50 moving along the space between the and its transfer path vertically cross. The drilling pipe transfer unit 40 may be formed of a sliding conveyor, a moving trolley moving along a rail, a crane, or the like, but in the following embodiment, the drilling pipe transfer unit 40 is assumed to be a conveyor. However, this is for convenience of description, and the scope of the present invention is not limited thereto.

Meanwhile, the guide bridge 30 is connected between the first structure 10 and the second structure 20. At this time, the guide bridge 30 is installed on the conveying path of the drilling pipe conveying part 40, and guides the drilling pipe conveying part 40 so as not to deviate from the path at the time of conveying, and also the drilling pipe conveying part 40. It serves to distribute the load of the drilling pipe (A) applied to the drilling pipe transfer unit 40. Conventionally, since the guide bridge 30 is fixedly installed, in order to operate the gantry crane 50, the guide bridge 30 has to be dismantled at the installation place.

However, in the ship 1 having the movable guide bridge according to the present invention, the guide bridge 30 slides along the rail part 100 installed on at least one of the first structure 10 and the second structure 20. In this way, the gantry crane 50 can be easily operated without dismantling of the guide bridge 30. In addition, after the gantry crane 50 has completed the transfer operation, since the guide bridge 30 is returned to its original position along the rail unit 100, the guide bridge 30 dismantled in order to transfer the drilling pipe (A). There is no need to reinstall it. Therefore, unnecessary work is eliminated, the transfer and supply of the drilling pipe (A) and other drilling equipment is made smoothly, as a result, the entire drilling work can be efficiently performed.

At this time, both the first structure 10 and the second structure 20 extends above the main deck 2 of the vessel 1 in which the movable guide bridge is formed to form a superstructure of the vessel, and a gantry The crane 50 or the guide bridge 30 is disposed adjacent to each other with enough space to intervene. The drilling tower 11 is installed above the first structure 10, and although not shown, a moon pool may be formed below. Therefore, the first structure 10 can be supplied to the seabed by receiving the drilling pipe (A). On the other hand, the second structure 20 adjacent to the first structure 10 is provided with a loading space therein can be loaded a plurality of drilling pipes (A), the drilling tower in turn by using the drilling pipe transfer unit 40 It can supply in (11).

In addition, the drilling pipe transfer part 40 is extended as long as corresponding to the length of the drilling pipe (A) as described above, the upper portion is opened, such as formed in a box shape, accommodating the drilling pipe (A) inside The upper surface of the guide bridge 30 is slid to move the drilling pipe (A) to the drilling tower (11). A separate guide rail extending in the longitudinal direction of the drilling pipe transfer unit 40 may be installed on the second structure 20, and the drilling pipe transfer unit 40 may move the first structure 10 along the guide rail. Can move sliding toward.

Hereinafter, with reference to FIGS. 2 to 4, each component of the vessel 1 in which the movable guide bridge having such a feature is formed will be described in more detail.

2 is a cross-sectional view taken along line a-a 'of the ship of FIG. 3 is a side view of the guide bridge and gantry crane of the vessel of FIG.

2 and 3, the rail unit 100 is installed on at least one of the first structure 10 and the second structure. The rail unit 100 may be formed of an iron beam such as an H beam or an I beam, but is not limited thereto. As long as the rail unit 100 may extend along the movement path of the guide bridge 30 as a bar-shaped member having sufficient rigidity, It is also possible to form it with other materials.

As shown in FIG. 3, a pair of rail units 100 may be formed, and each of the rail units 100 may be formed at ends of the first structure 10 and the second structure 20 to face each other. Accordingly, the guide bridge 30 may be stably interposed between the first structure 10 and the second structure 20.

The guide bridge 30 includes a support plate 310 and a bridge driving part 320. In particular, the support plate 310 constitutes the body of the guide bridge 30, and connects the first structure 10 and the second structure 20, and moves along the rail portion 100. It is equivalent to the guide bridge 30. Therefore, in this specification, the support plate 310 and the guide bridge 30 is used in the sense that one replaces the other. In addition, the description of the above-described guide bridge 30 may also be replaced with the description of the support plate 310.

The support plate 310 is formed of a plate-shaped structure extended to one side. The support plate 310 may be formed by stacking one or more plates, and a reinforcement may be inserted therein to maintain rigidity. Both ends of the support plate 310 are slidably coupled to the above-described rail unit 100 to connect between the first structure 10 and the second structure 20, and are connected along the rail unit 100. I can move it.

The bridge driving part 320 is formed inside the support plate 310. The bridge driving unit 320 includes, for example, a rotary actuator such as a motor, a driving wheel rotating in close contact with the rail unit 100, and a gear, a chain, a sprocket, and the like to transfer power between the actuator and the driving wheel. It may be made of a power transmission device, thereby providing a driving force to move the support plate 310 or the guide bridge 30 along the rail portion (100).

The gantry crane 50 is an overhead crane moving along a predetermined track, and is installed between the first structure 10 and the second structure 20 to move the sliding pipe transfer unit (see 40 in FIG. 1). That is, the sliding movement in the direction crossing the direction from the second structure 20 toward the first structure 10. At this time, the gantry crane 50 may also be coupled to the rail unit 100 and placed in a horizontal direction with the guide bridge 30 as shown in FIG. 2.

The gantry crane 50 includes a vertically extending support frame 520, a horizontal beam 530 connecting between the support frame 520, a hoist 510 extending downward from the center of the horizontal beam 530, and It includes a crane driver 540 located at the end of the support frame (520). The strut frame 520 can be deflected at an appropriate angle to easily support the horizontal beam 530, and the hoist 510 is lowered or raised upward from the horizontal beam 530 to rest on the main deck 2. Drilling equipment (B) can be lifted. At this time, the drilling equipment (B) connected to the hoist 510 is not a drilling tube (see A of Figure 1), for example, as shown in the relatively shorter length than the drilling tube (A) is formed in a block shape Drilling equipment, such as blowout preventer (BOP) can be.

The crane driver 540 located at the end of the support frame 520 is slidably coupled to the rail unit 100, respectively. Therefore, the gantry crane 50 as a whole can move the drilling equipment (B) by moving horizontally along the rail portion (100). When the transfer operation of the gantry crane 50 starts, the guide bridge 30 moves quickly along the rail portion 100 to leave the transfer area where the drilling equipment B is transferred, and the gantry crane 50 When the transfer operation is finished, the guide bridge 30 returns to the original position again to participate in the transfer operation of the drilling pipe (A). Operation of the gantry crane 50 and the guide bridge 30 will be described in more detail below.

The crane driving unit 540 provides a driving force to the gantry crane 50, and similarly to the bridge driving unit 320, for example, a rotary actuator such as a motor and a driving wheel that rotates in close contact with the rail unit 100. And it is composed of gears, chains, sprockets and the like can be made of a power transmission device for transmitting power between the actuator and the drive wheel.

4 is a side view of the guide bridge and the gantry crane of the vessel of FIG. 1 according to a modification of the rail portion.

Meanwhile, referring to FIG. 4, the above-described rail part may be modified in the form of a double rail including the first rail part 110 and the second rail part 120. In this case, the pair of first rails 110 are formed at the ends of the first structure 10 and the second structure 20 so as to face each other, and the pair of second rails 120 also has a first pair Formed at the ends of the structure 10 and the second structure 20, respectively, and disposed to face each other, the second rail portion 120 is disposed on the end side of each structure as shown, the second level as a whole A portion 120 is located inside the first rail unit 110.

As such, when the first rail unit 110 and the second rail unit 120 are formed in the form of a double rail, the gantry crane 50 and the support plate 310 are respectively along the different rail units 100. Can move independently That is, in the gantry crane 50, the crane driver 540 is coupled to the first rail part 110, respectively, and moves along the first rail part 110, while the support plate 310 or the guide bridge 30 is used. ) Is that the bridge driving unit 320 is coupled to the second rail unit 120 side, respectively, to move along the second rail unit 120. In this case, the relative positions of the gantry crane 50 and the support plate 310 can be changed, so that the drilling rig B transport region of the gantry crane 50 can be expanded more widely. This will be described later in more detail.

Hereinafter, the operation of the guide bridge and the gantry crane will be described in more detail with reference to FIGS. 5 to 9.

5 and 6 are operation diagrams of the guide bridge and gantry crane of Figure 3, Figures 7 to 9 are operation diagrams of the guide bridge and gantry crane of FIG.

First, referring to FIGS. 5 and 6, when a pair of rail portions 100 are formed, the guide bridge 30 or the support plate 310 is initially shown in FIG. 5 for the drilling pipe A transfer. As it is located in the center of the rail unit 100 is placed side by side with the drilling pipe transfer unit 40. In this state, the drilling pipe transfer unit 40 may slide to move the upper surface of the support plate 310 to move from the second structure 20 to the first structure 10 in the direction of the arrow.

At this time, the movement of the gantry crane 50 is limited to an area that is less than half of the length of the rail portion 100 from the point where the support plate 310 or the guide bridge 30 is located. Conventionally, the guide bridge 30 is fixedly installed at such a position, and therefore, the gantry crane 50 is not only drilled during the drilling pipe A transfer operation but also after the drilling pipe A transfer is completed. Only part of the transport zone C1 of the equipment was accessible.

On the other hand, in the vessel formed with a movable guide bridge according to the present invention, after the transfer of the drilling pipe (A), the guide bridge 30 can slide to the end of the rail unit 100 as shown in FIG. Therefore, the movement of the gantry crane 50 is expanded to facilitate access to the entire transport region C1 of the drilling rig. As a result, the drilling equipment can be smoothly transferred.

After the transfer of the drilling rig is completed, the guide bridge 30 may move back to the center of the rail unit 100 to return to the original position and resume the above-described drilling pipe transfer operation.

Subsequently, referring to FIGS. 7 to 9, even when a pair of the first rail part 110 and the second rail part 120 is formed, the guide bridge 30 or the support plate is initially used for transporting the drilling pipe A. FIG. As shown in FIG. 7, 310 is positioned at the center of the first rail part 110 or the second rail part 120 to lie side by side with the drilling tube transfer part 40. In this state, the drilling pipe transfer unit 40 may slide to move the upper surface of the support plate 310 to move from the second structure 20 to the first structure 10 in the direction of the arrow.

When the transfer of the drilling pipe A is completed, the guide bridge 30 or the support plate 310 is rapidly moved to the end of the second rail portion 120 as shown in FIG. 8. As a result, the movement of the gantry crane 50 is expanded, and thus, the gantry crane 50 may move along the first rail unit 110 to easily access the entire transport region C1 of the drilling rig. .

On the other hand, when the pair of the first rail portion 110 and the second rail portion 120 is formed, the guide bridge 30 or the support plate 310 passes through the gantry crane 50 as shown in FIG. Thus, it is possible to move to the opposite end of the second rail portion 120. That is, since the gantry crane 50 and the guide bridge 30 are moved using different rail parts, the relative positions of the gantry crane 50 and the guide bridge 30 may be changed.

In this state, the gantry crane 50 can further access the transfer zone C2 of another drilling rig formed on the opposite side of the transfer zone C1 shown in FIG. 8. Therefore, the drilling equipment can be transferred more smoothly. Even when the pair of the first rail part 110 and the second rail part 120 is formed, the guide bridge 30 returns to the original position in the center of the rail part 100 again after the drilling equipment is completed. Tube transfer can be easily resumed.

Hereinafter, with reference to Figures 10 to 11, a vessel in which the movable guide bridge according to another embodiment of the present invention will be described in detail.

FIG. 10 is a perspective view illustrating a portion of a vessel on which a movable guide bridge according to another embodiment of the present invention is formed, and FIG. 11 is an operation view of the guide bridge and the gantry crane of the vessel of FIG. 10.

In order to make the description more concise and clear, the following description will focus on the differences from the above-described embodiments, and the description of the remaining components, which are not mentioned otherwise, will be replaced with the above description.

Referring to FIG. 10, in the ship 1-1 having a movable guide bridge according to another embodiment of the present invention, the support plate 310 or the guide bridge 30 includes the first structure 10 and the second structure ( It may be inserted by sliding movement to any one of 20). At this time, it is inserted that the support plate 310 or the guide bridge 30 is completely overlapped with the first structure 10 or the second structure 20 between the first structure 10 and the second structure 20. It does not mean that it is not interposed, it does not necessarily mean that it is inserted into the interior of the first structure 10 or the second structure 20.

In this case, the pair of first rail portions 110 are formed in the first structure 10 and the second structure 20 in parallel with each other, the pair of second rail portion 120 is the first structure 10 and One of the second structures 20 may be formed in a direction crossing the pair of the first rail parts 110. 2, the second rail part 120 is formed on the first structure 10. As a result, the gantry crane 50 moves along the first rail part 110, and the support plate 310 or the guide bridge 30 moves along the second rail part 120, thereby easily colliding with each other. Drilling equipment can be transferred.

Subsequently, referring to FIG. 11, the guide bridge 30 or the support plate 310 may move in a direction perpendicular to the first rail part 110 along the second rail part 120, as shown in FIG. 11. It can be inserted completely into the first structure (10).

In this state, the gantry crane 50 extends the movement by the entire length of the first rail unit 110. Accordingly, the drilling equipment may be transported by easily approaching the transport area C3 having a wide size corresponding to the entire length of the first rail unit 110.

As described above, even when the first rail part 110 and the second rail part 120 are formed to cross each other, the guide bridge 30 returns to the first structure 10 after the drilling equipment is completed. It may be interposed again between the second structures 20. Therefore, the transfer of the drilling pipe can be made smoothly again.

While the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1, 1-1: Vessel with Mobile Guide Bridge
2: main deck 10: first structure
11: drilling tower 20: second structure
30: guide bridge 310: support plate
320: bridge driving unit 40: drilling pipe transfer unit
50: gantry crane 510: hoist
520: holding frame 530: horizontal beam
540: crane driving portion 100: rail portion
110: first rail portion 120: second rail portion
A: Drilling Pipe B: Drilling Rig
C1 ~ C3: transfer area

Claims (5)

A first structure extending above the main deck and provided with a drilling tower;
A second structure adjacent to the first structure and supplying a drilling tube to the drilling tower;
A rail unit installed on at least one of the first structure and the second structure;
A support plate moving along the rail unit and connecting between the first structure and the second structure;
A drilling pipe conveying unit for transferring the drilling pipe from the second structure to the drilling tower through an upper surface of the support plate; And
And a movable guide bridge provided between the first structure and the second structure and including a gantry crane moving in a direction intersecting with a movement direction of the drilling tube. The ship of claim 1, wherein the rail unit is provided with a movable guide bridge disposed in parallel with a moving direction of the gantry crane. The method of claim 2, wherein the rail unit,
A pair of first rail portions respectively formed in the first structure and the second structure, and
In the first structure and the second structure includes a pair of second rail portion formed in parallel with the first rail portion, respectively located inside the first rail portion,
The gantry crane is moved along the first rail portion, the support plate is a vessel formed with a movable guide bridge to move along the second rail portion. The ship of claim 1, wherein the support plate is moved and inserted into any one of the first structure and the second structure. The method of claim 4, wherein the rail unit,
A pair of first rail portions respectively formed in the first structure and the second structure, and
In any one of the first structure and the second structure, including a pair of second rail portion formed in a direction crossing the first rail portion,
The gantry crane is moved along the first rail portion, the support plate is a vessel formed with a movable guide bridge to move along the second rail portion.

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